12101020322220 has 84 divisors (see below), whose sum is σ = 38100784607760. Its totient is φ = 3226938748704.

The previous prime is 12101020322213. The next prime is 12101020322233. The reversal of 12101020322220 is 2222302010121.

12101020322220 is a `hidden beast` number, since 1 + 2 + 101 + 0 + 20 + 322 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12101020322193 and 12101020322202.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 414972400 + ... + 415001559.

It is an arithmetic number, because the mean of its divisors is an integer number (453580769140).

Almost surely, 2^{12101020322220} is an apocalyptic number.

12101020322220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101020322220 is an abundant number, since it is smaller than the sum of its proper divisors (25999764285540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101020322220 is an equidigital number, since it uses as much as digits as its factorization.

12101020322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829973986 (or 829973969 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12101020322220 its reverse (2222302010121), we get a palindrome (14323322332341).

The spelling of 12101020322220 in words is "twelve trillion, one hundred one billion, twenty million, three hundred twenty-two thousand, two hundred twenty".